Department – Categorie

In my intranet, developed in WordPress will have an area on the homepage where we have stories that are published also in other categories, the staff published a story in the category Human Resources, and will make the list of category, which will also be displayed on the homepage (mural class) until ai OK, but I wish they were shown as:

Mural de Notícias === ==
—————————————–

Department: Name of department

– Title 01 news
blah, blah, blah, blah ……

– Title 02 news
blah, blah, blah, blah ……
—————————————–

Department: Name of department 2

– Title 01 news
blah, blah, blah, blah ……

– Title 02 news
blah, blah, blah, blah ……

The problem in this loop that appears the name of the sector also, how? With loop for?